Chelsea U18: every transfer in and out, fees paid and earned, squad market value, €5.1m spent and €4.9m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2025-07-01 | Reggie Walsh | Chelsea U18 | Chelsea U21 | — |
| 2025-07-01 | Landon Emenalo | Chelsea U18 | Chelsea U21 | — |
| 2025-07-01 | Genesis Antwi | Chelsea U18 | Chelsea U21 | — |
| 2024-07-01 | Tyrique George | Chelsea U18 | Chelsea U21 | — |
| 2024-07-01 | Ted Curd | Chelsea U18 | Chelsea U21 | — |
| 2024-07-01 | Somto Boniface | Chelsea U18 | Chelsea U21 | — |
| 2024-07-01 | Shumaira Mheuka | Chelsea U18 | Chelsea U21 | — |
| 2024-07-01 | Reggie Walsh | Chelsea Youth | Chelsea U18 | — |
| 2024-07-01 | Ollie Harrison | Chelsea U18 | Chelsea U21 | — |
| 2024-07-01 | Landon Emenalo | Chelsea Youth | Chelsea U18 | — |
| 2024-07-01 | Kaiden Wilson | Chelsea U18 | Chelsea U21 | — |
| 2024-07-01 | Josh Acheampong | Chelsea U18 | Chelsea U21 | — |
| 2024-07-01 | Harrison Murray-Campbell | Chelsea U18 | Chelsea U21 | — |
| 2024-01-01 | Michael Golding | Chelsea U18 | Chelsea U21 | — |
| 2023-09-02 | Ted Curd | Chelsea U18 | Hashtag Utd | Loan |
| 2023-08-21 | Ollie Harrison | Newcastle U18 | Chelsea U18 | €600k |
| 2023-07-01 | Zain Silcott-Duberry | Chelsea U18 | Chelsea U21 | — |
| 2023-07-01 | Shumaira Mheuka | Chelsea Youth | Chelsea U18 | — |
| 2023-07-01 | Sam Rak-Sakyi | Chelsea U18 | Chelsea U21 | — |
| 2023-07-01 | Ronnie Stutter | Chelsea U18 | Chelsea U21 | — |